Monorail trolley



April 14, 1 3 G. c. HENDERSON 1,301,001

MONORAIL TROLLEY Filed April 1930 a, as

I N V EN TOR. (vase C. Havana) "II/IIIIIII IIIIIIIII Patented Apr. 14,1931 UNITED STATES PATENTIOFFICE excess 0. HENDERSON, or nn'rnorrmionrenn MononArr. TROLLEY Application filed April 9, 1930. semrno.442,956.

in engagement therewith when rounding curves and making turns.

It is another object of the present invention to provide a mono-railtrolley whereby the trolley wheel may be securely held in position withthe mono rail and at the same time a flexibility given to its mountingswhich will assure maximum efficiency and.

durability.

Another object of the invention is the provision in a mono rail tractionsystem of an a trolley engageable with the feed rail and held yieldablyin engagement therewith and also provided with a locking device whichwill prevent its undue removal therefrom. Another object of the presentinvention is the provision in a mono rail trolley of a mounting for thetrolley wheel which will lock the wheel in engagement with the trolleyrail and which may be easily and quickly moved to position to releasethe trolley wheel from the rail.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of partshereinafter described and claimed.

The invention will be best understood by a reference to the accompanyingdrawings which form a part of this specification and in which,

Fig. 1 is a side elevational view of the 4.0 invention.

Fig. 2 is a view taken on line 22 of Fig. 1. i

Fig. 3 is a view taken on line 3 -3 of Fig. 1.

Fig. 1 is a view taken online 44 of Fig. 1.

wheels engage the traction rail 16 which is positionedabove and inalignment with the trolleyraill'l. These rails are secured together atintervals by the spacing" blocks 18. Slidably mounted between thehangers 15 is a plate 19 of insulating material secured to oppositesides of which are the retaining plates 20 and 21 which overlap each ofthe hangers l5 and serve to mountthe plate 19 slidably between thehangers 15. J ournaled in the plate 19 and projecting through theretaining plates 20 and 21 is a shaft 22 on which is rotatably mountedthe trolley wheel 23 which en ages the undersurface of the trolley rail1? p nected to the shaft 22 and conducted through the cable 25 through asuitable switch mecha.

nism 26 and thence to the motor 10. At-

tached tothe upper end of the plate 19 is a coil spring 27 the oppositeend of which is secured tothe bolster 14 so as to normally retain thewheel 23 in engagement with the rail. 17. Swingably mounted on the wheel22 is a segment 28 also made of insulating material. p y 1 As shown inFig. 1 and Fig. 3, the plate 19 may slide downwardly against the tensionof the spring 27 a slight distance but this down ward movement isinsuflicient to permit the clearing of the flanges of the trolley wheelwith therailso that disengagement of the trolley wheel with the railcannot be had.

\Vhen it. is desired to disengage the trolley wheel from theraiil, thesegment guard 28 maybe swung upwardly on the wheel 22 and then the plate19 may be moved downwardly sufficiently to permit the disengagement.

With this arrangement of the feed rail and trolleymounting, the jumpingof the trolley from the feed rail onmono rail systems when the car ismaking turns or round curves is prevented. At the same time a closeengage- 'ment' if the trolley with therail is maintained, thusassuringefiicient operation at all times." 1 p While Ihave illustrated anddescribed the preferred form ofinyinvention, I do not wish to limitmyself to the precise details of structure shownbut desire to availmyself ofsuchvariations and modifications as may An electric cable 24 iscon- V comewithin the scope of the appended claims.

Said resilient means to a Havingthusdescribed my invention what .I claimasnew, and desire to' secure by Letters Patent is: V I

3 l. A mono rail trolley of the class described, comprising: a trolley.Wheel engageable with a trolley rail; resilient means for normallyretaining said trolley wheel in engagement with said trolley rail; andmeans for limiting withdrawal of said trolley wheel from said trolleyrailgagainst thetension; of

tance; V V

2. A mono rail trolley of the class described, comprising atro-lley wheeengageable with a -trolley rail; slidablelmeans for supporting saidtrolley wheel; resilient V means for resisting slidable movement of Isaid slidable' means in one directionfand means for preventing slidablemovement of a predetermined"distance. q

3. A mono rail trol-ley of the classdesaid slidable means in saiddirection beyond scribed, comprising :a trolley wheel engageable with a.trolley rail --yieldable means for normally retaining said trolley wheelin engagement with said trolley rail; movable .r means adapted uponmovement ntoone-posi tion for preventing iwi-thdrawal' off said atrolley wheel from said trolley rail beyond a predetermined distance,said trolley wheel being adapted formovement awayfromesaid trolley raila greateiydistance upon movement of said preventing meansintolanoth'er iposition; a y 7 1 r a. A mono railtrolley of the' class de-f 1 scribed,comprising: a' trolley; wheel engageable with a trolley railjsli-dablemeans for V V supporting said trolleywheelin vposition; Y resilientmeans for "normally resisting ,move- :ment of said slidablemeans-towithdraw said wheel from saidrail; and movable means adapted,uponmovement-into one position, for-preventing withdrawal of saidtrolley i wheel from said rail beyond a pre-determined distance, f

5. A mono rail trolley or the f'classfdescribed, comprising: a pair ofspaced hangp ers; a plate slidab'ly'mounted between said hangers; a pairof retaining platesieengaging opposite faces of, saidplate, and'projecti-ng i beyondthe' sidesfthereof and embracing'said hangers; ashaft'journaled infand projecting through said firstmentioned plate andsaid retaining plates ';-.'a, trolleyrwheeli mounted on saidshaft andengageable withcatrolley raihf a springjfor resisting sli-dable'movementof i said plate in one direction; and-means movably mounted on saidshaft for,, Wl1en1 1n0Ved to one position, preventing Slidabl'e.,m0V.e vvmentiofsaid plate insaiddireotionbeyond a predetermined distance.

In testimony ewher eof, I have: signed' the 1 jforegoing specification.i i

eEoaGEro; HENp RsoK pre-de'termined dis

